body{
    background: url("../img/background.png") no-repeat;
    padding: 0;
    margin: 0;
    background-size: 100% 1200px;
    font-family:  "Microsoft Yahei", Arial, Helvetica, sans-serif;
}
.ibody{
    width: 1200px;
    height: 1120px;
    margin:  0 auto;
    padding: 20px;
    background-color: rgba(0,0,0,0.6);
    color: #f7f7f7;
    box-shadow: 0 0 10px 5px #040505;
}
.banner li{
    margin-left: 50px;
    font-family:  "Microsoft Yahei";
    font-size: 19px;
}
.logo{
    width:55px;
    border-radius: 50%
}
